Buoys and Moorings

Total Page:16

File Type:pdf, Size:1020Kb

Buoys and Moorings Buoys and Moorings Inland Waterway and Shallow Harbor Solutions www.sealite.com We believe technology improves navigation™ Introduction & Contents Made in USA Introduction Table of Contents Page # Thank you for considering Sealite for your Introduction 2 marine marking needs. Sealite is a major Buoy Terminology 3 supplier to federal, state and local marine The Sealite Advantage 4 authorities including the U.S. Coast Guard and Mooring/Installation Examples 5 the U.S. Navy. Sealite’s buoy and float products Regulatory Spar Buoys 6 are rotationally molded in our New Hampshire Regulatory Float Collar Buoys 8 factory to the same exacting standards as Regulatory Signage 10 our offshore and coastal buoy products. The Special Marking Options 10 products utilize the same premium quality Regulatory Wraps 11 polyethylene and closed cell foam materials 11 for optimal performance. Our sole focus is Restoration Kits improving the safety of mariners by developing Channel Marker Spar Buoys 12 state of the art aids to navigation; we don’t Channel Marker Float Collar Buoys 14 make pool products or medical supplies like Solar Marine Lanterns 16 some other companies. Call us for custom Barrier Floats 18 solutions to your marking challenges. We look Buoy and Barrier Float Examples 20 forward to working with you. Daymarks & Signage 21 Mooring Buoys 22 Winter Mooring Sticks 23 Elastic Conservation Mooring System 24 Mooring Hardware 26 Mooring Weights 27 Sealite is one of the only full-line navigation aid producers to manufacture marine buoys on-site with state of the art rotational molding equipment; in-house manufacturing allows us to ensure marine buoys are robust and able to withstand the most severe weather conditions. Note: Content is implied for general information only. Sealite assumes no responsibility for installations based on examples shown. 2 www.sealite.com Email: [email protected] Phone: +1 603 737-1311 Buoy Terminology Buying a Buoy: Important Terminology When choosing a Sealite buoy, it is important to understand exactly what size and type will suit your particular application. Sealite strives to provide straightforward terminology to assist you in your selection. Here’s what you need to know, and why it’s important. Term Explanation Overall Height Total buoy height, including any external counterweight. Height of the buoy above the water line in a typical installation. Freeboard may Nominal Freeboard vary slightly due to differences in water density, mooring load, and current speed. Length of the buoy that is under water. Like Freeboard, draft can vary due to Nominal Draft particular installations. Visible area of a buoy, calculated from freeboard and the diameter of the buoy. Visual Area (or Exposure) Visual Area is a key measure of the visibility of a buoy to mariners. Submergence Amount of weight necessary to sink a buoy one inch (or centimeter). 8 Maximum weight of the mooring load for a buoy to still achieve Nominal Maximum Mooring Load Freeboard. 9 8 7 6 5 4 3 2 1 Wall Thickness Thickness of the rotationally molded plastic wall. G Overall width of the buoy. May be more than one [diameter] if float collar type of Diameter buoy. Reserve Buoyancy Amount of product weight and the required buoyancy required to keep it afloat. F (D1) Diameter (D) Diameter E (D2) Diameter (F) (H) (O) Height Overall (F) (H) (O) Freeboard Height Water Line Freeboard Water Line Overall Height D (DR) Draft (DR) Draft C B6 www.sealite.com Email: [email protected] Phone: +1 603 737-1311 3 Material/Quantity General Tolerances Linear Angular Radii Drawing No:- X ±1.2 X ±1.0° X ±2.0 X.X ±0.3 X.X ±0.5° X.X ±0.5 X.XX ±0.1 Drawing Rev:- Model Rev:- File Name:- Nomenclature Drawing Drawn:- Next Ass'y:- A Checked:- Finish:- Sealite Approved:- Qty per Ass'y:- Projection Scale Units Drawn in:- Wt(Kg) each:- 1:20 mm SolidWorks Sheet Size:- A3 Sheet 1 of 1 SL/AV-7.3.3-8-SW_A3_Landscape_Template-1-29/05/14 The Sealite Advantage Made in USA Advantages of Sealite vs. Competitor Sealite Competitor Rotationally molded polyethylene is poured into Sheets of plastic are vacuum formed or Process a mold and then spun on a rotational molding heated to form the desired buoy shape. machine for uniform thickness. Seams are evident where the sheets Seamless, all Sealite products are molded as single Construction of plastic are joined together, creating pieces for uniform strength. potential weak spots. ABS may require the use of toxic materials to No toxic chemicals or heavy metals are ever used Materials increase impact strength and to maintain in the manufacture of any Sealite buoy products. the ability to form into shape. Polyethylene has exceptionally high resistance to ABS requires the addition of Butadiene to be Chemical fuels, oils, and other human by-products that reside chemical resistant. Butradiene is extremely Resistance in the maritime environment. toxic and harmful to humans and animals. ABS is moisture resistant...when toxic Polyethylene is classed as polyolefin material Moisture ingredients are added. As a hygroscopic which exhibits an extremely high level of moisture Resistance material, moisture and water particles will resistance. absorb into it. Automotive trim, (small) appliances like Non-Marine toaster-ovens and coffee makers, and other Surgical implants and surgical tubing, etc. Uses applications and products that require heat resistance and flame retardancy. Only Sealite adds a UV stabilizing compound UV stabilizer added (oftentimes upon UV-Stabilization to both the polyethylene and coloring agents, request only) to ABS. ABS materials with high & Color Stability providing additional protection from the degrading levels of toxic Butadiene can be difficult to effects of UV exposure. compound colors into. Regular, open cell foam filling can become Closed cell polyurethane foam means any saturated if a buoy is punctured, allowing potential water ingress will not permeate the foams’ Filling water to penetrate and saturate each cell, closed cells, allowing for a more buoyont product adding weight and adding to the risk of should the buoy sustain damage. submergence. It’s easy to tell when the buoy you’re passing is NOT from Sealite! Buoy from “other” manufacturer Sealite’s Rotationally Molded Polyethylene Buoy 4 www.sealite.com Email: [email protected] Phone: +1 603 737-1311 Mooring/Installation Examples Chain mooring Cable on spar buoy mooring on spar buoy D B B D F E C F C B B E A A Chain mooring on Shallow water float collar buoy with chain mooring for external counterweight float collar buoy (standard installations) D D B B C B B C A A Spar buoy with barrier floats Mooring System Key (Dam, Swim Area Marking) using chain A Mooring Weight B Shackle C Chain or cable D B D Swivel at buoy/chain connection point C E Thimbles B A F Cable Clamps See pages 24-27 for Sealite’s mooring accessories www.sealite.com Email: [email protected] Phone: +1 603 737-1311 5 Regulatory Spar Buoys Made in USA Features • Integrated stainless steel mooring eye (SL-B576, SL-B980, SL-B1060, SL-B1362) during molding process results in completely sealed, virtually unsinkable, watertight buoy • Recessed mooring eye allows buoy to be stored upright with hardware attached for ease of deployment and storage • 3-inch wide band of USCG approved retroreflective tape • Self righting without tackle • Standard messages (see pg. 10) included as standard Urethane Foam • UV inhibited polyethylene for extreme durability in harsh sunlight Options Concrete Ballast • 3-inch wide silver top reflective tape for added visibility • Solar lantern (see table below) • Custom signage • Mold in graphics • Alternative colors available (yellow or orange) Integrated/ Recessed Mooring Eye SL-B576, 980, 1060, 1362 Spar Buoys feature an integrated mooring eye and internal concrete ballast Mooring Suggestions on page 5 Specifications SL-B576-RB SL-B980-RB SL-B1060-RB SL-B1362-RB Diameter (in/mm) - D 5 (127) 9 (229) 9 (229) 13 (330) Buoy Height (in/mm) - H 76 (1930) 80 (2032) 61 (1549) 62 (1575) Overall Height (in/mm) - O 76 (1930) 80 (2032) 61 (1549) 62 (1575) Nominal Freeboard (in/mm) - F 36 (914) 42 (1067) 36 (914) 40 (1016) 2 2 Visual Area (ft /m ) 1.25 (0.12) 2.5 (0.24) 2.25 (0.2) 3.6 (0.33) Submergence (lb/in; kg/cm) 0.75 (0.13) 3 (0.5) 3 (0.5) 4.8 (0.9) Nominal Draft (in/mm) - DR 40 (1016) 38 (965) 25 (635) 22 (559) Net weight (lb/kg) 23 (10) 78 (35) 63 (29) 102 (46) Max Mooring Load (lb/kg) 5 (2) 25 (11) 12 (5) 21 (9.5) Wall Thickness (in/mm) 0 .2 (5) 0 .2 (5) 0 .2 (5) 0 .2 (5) Optional Solar Lantern (pgs. 16-17) N/A SL-15, SL-60 SL-15, SL-60 SL-15, SL-60, SL-70 * Requires external lantern plate 6 www.sealite.com Email: [email protected] Phone: +1 603 737-1311 Regulatory Spar Buoys Lantern adapter Threaded rod plate (optional) with washer UV inhibited polyethylene shell Closed cell polyurethane foam filling Mooring eye (u-bolt) Galvanized steel pipe External ballast Custom Buoys available for your unique marking needs. Ask your sales associate for details. Mooring Suggestions on page 5 Specifications SL-B1452E-RB SL-B2445E-RB Diameter (in/mm) - D 14 (356) 24 (609) Buoy Height (in/mm) - H 52 (1321) 45 (1143) Overall Height (in/mm) - O 76 (1930) 90 (2286) Nominal Freeboard (in/mm) - F 40 (1016) 39 (990) 2 2 Visual Area (ft /m ) 3.8 (0.35) 6.5 (0.6) Submergence (lb/in; kg/cm) 5.5 (0.98) 16 (2.9) Nominal Draft (in/mm) - DR 36 (914) 51 (1295) Net weight (lb/kg) 88 (39) 145 (66) Max Mooring Load (lb/kg) 21 (9.5) 52 (23) Wall Thickness (in/mm) 0.2 (5) 0.2 (5) Optional Solar Lantern SL-15*, SL-60*, SL-70* SL-15*, SL-60*, SL-70*, SL-75* (pgs.
Recommended publications
  • Buoys, Fenders and Floats Main Catalog
    s t a o l F d g n o l 5 a 5 a 9 t s 1 r a e e C c n d i n s n i - e a F M , s y o u B Polyform - the Originator of the modern Plastic Buoy 2 Polyform ® was established in Ålesund, Norway in the year of 1955 and was the first company in the world to produce an inflatable, rotomolded soft Vinyl buoy. The product was an instant success and was immediately accepted in the domestic as well as overseas markets. Products and machinery were gradually developed and improved until the first major leap forward in our production technology happened in the 1970’s and early 1980’s when specially designed, in-house constructed machinery for rotomolding of our buoys and fenders was developed and put into use. Such type of machinery at that time was truly unique in the world of molding buoys and fenders. More recent and even more revolutionary developments took place in the new millennium, by our designing and constructing of the first ever fully automated and robot assisted production machinery, built for molding of inflatable fenders. Ever since the start in 1955, our company has been committed to further expand the range and to further develop, customize and improve the individual products. Today, Polyform ® of Norway can offer the widest range of inflatable buoys and fenders , expanded foam marina fenders, purse seine floats and an extensive range of hard-plastic products for use throughout the marine industry, including aquaculture/fish-farming, offshore oil and gas industry, harbors, ships, marina industry and custom made products also for land-based applications.
    [Show full text]
  • 1.0 Introduction
    1.0 INTRODUCTION 1.1 MARINE RECREATION AND TOURISM IN HAWAI‘I Hawai‘i hosts approximately seven million visitors each year who spend more than US $11 billion in the state and in the last 20 years tourism has increased over 65% (Friedlander et al., 2005). More than 80% of Hawaii’s visitors engage in recreation activities in the state’s coastal and marine areas with the majority of these individuals participating in scuba diving (200,000 per year) or snorkeling (3 million per year) when visiting (Hawai‘i DBEDT, 2002; van Beukering & Cesar, 2004). Other popular marine recreation activities include ocean kayaking, parasailing, swimming, outrigger canoeing, and surfing. Coral reef areas are a focal point for much of this recreation use, but these areas are also a natural resource that has considerable social, cultural, environmental, and economic importance to the people of Hawai‘i. For example, the state’s reefs generate US $800 million in revenue and $360 million in added value each year (Cesar & van Beukering, 2004; Davidson et al., 2003). These reefs are also important for local residents, as approximately 30% of households in the state have at least one person who fishes for recreation and almost 10% of households also fish for subsistence purposes (QMark, 2005). As popularity of Hawaii’s reef areas continues to increase, demand for access and use can disrupt coastal processes, damage ecological integrity of reef environments, reduce the quality of user experiences, and generate conflict among stakeholders regarding appropriate management responses (Orams, 1999). As a result, state regulatory agencies such as Hawaii’s Department of Land and Natural Resources (DLNR) are faced with a set of challenges that include determining use thresholds and how to 1 manage and monitor use levels to ensure that thresholds are not violated, protecting reef environments from degradation, and ensuring that user experiences are not compromised.
    [Show full text]
  • Marine Recreation at the Molokini Shoal Mlcd
    MARINE RECREATION AT THE MOLOKINI SHOAL MLCD Final Report Prepared By: Brian W. Szuster, Ph.D. Department of Geography University of Hawai‘i at Mānoa Mark D. Needham, Ph.D. Department of Forest Ecosystems and Society Oregon State University Conducted For And In Cooperation With: Hawai‘i Division of Aquatic Resources Department of Land and Natural Resources July 2010 ACKNOWLEDGMENTS The authors would like to thank Emma Anders, Petra MacGowan, Dan Polhemus, Russell Sparks, Skippy Hau, Athline Clark, Carlie Wiener, Bill Walsh, Wayne Tanaka, David Gulko, and Robert Nishimoto at Hawai‘i Department of Land and Natural Resources for their assistance, input, and support during this project. Kaimana Lee, Bixler McClure, and Caitlin Bell are thanked for their assistance with project facilitation and data collection. The authors especially thank Merrill Kaufman and Quincy Gibson at Pacific Whale Foundation, Jeff Strahn at Maui Dive Shop, Don Domingo at Maui Dreams Dive Company, Greg Howeth at Lāhaina Divers, and Ed Robinson at Ed Robinson’s Diving for their support in facilitating aspects of this study. Also thanked are Hannah Bernard (Hawai‘i Wildlife Fund), Randy Coon (Trilogy Sailing Charters), Mark de Renses (Blue Water Rafting), Emily Fielding (The Nature Conservancy), Pauline Fiene (Mike Severns Diving), Paul Ka‘uhane Lu‘uwai (Hawaiian Canoe Club), Robert Kalei Lu‘uwai (Ma‘alaea Boat and Fishing Club), Ken Martinez Bergmaier (Maui Trailer Boat Club), Ananda Stone (Maui Reef Fund), and Scott Turner (Pride of Maui). A special thank you is extended to all of recreationists who took time completing surveys. Funding for this project was provided by the Hawai‘i Division of Aquatic Resources, Department of Land and Natural Resources pursuant to National Oceanic and Atmospheric Administration (NOAA) Coral Reef Conservation Program award numbers NA06NOS4190101 and NA07NOS4190054.
    [Show full text]
  • Safe Boating Guidelines
    DIVE FLAGS HEALTH & DIVING REFERENCE SERIES When diving, fly the flag. Ensure the flags are stiff, 6 West Colony Place unfurled and in recognizable condition. Durham, NC 27705 USA SAFE BOATING PHONE: +1-919-684-2948 DIVER DOWN FLAG DAN EMERGENCY HOTLINE: +1-919-684-9111 GUIDELINES This flag explicitly signals that divers are in the water and should always be flown from a vessel or buoy when divers are in the water. When flown from a vessel, the diver down flag should be at least 20 inches by 24 inches and flown above the vessel’s highest point. When displayed from a buoy, the flag should be at least 12 inches by 12 inches. ALPHA FLAG Internationally recognized, this flag is flown when the mobility of a vessel is restricted, indicating that other vessels should yield the right of way. The alpha flag may be flown along with the diver down flag when divers are in the water. D SURFACE MARKER BUOYS I V When deployed during ascent, a E surface marker buoy (SMB) will make R a diver’s presence more visible. In B addition to a SMB, divers may also E L use a whistle or audible signal, a dive O light or a signaling mirror to notify W boaters of their location in the water. Part #: 013-1034 Rev. 3.27.15 REPORT DIVING INCIDENTS ONLINE AT DAN.ORG/INCIDENTREPORT. JOIN US AT DAN.ORG SAFE BOATING GUIDELINES To prevent injuries and death by propeller and vessel strikes, divers and boaters must be proactively aware of one another.
    [Show full text]
  • The Marine Archaeological Resource
    The marine archaeological resource IFA Paper No. 4 Ian Oxley and David O’Regan IFA PAPER NO. 4 THE MARITIME ARCHAEOLOGICAL RESOURCE Published by the Institute of Field Archaeologists SHES, University of Reading, Whiteknights, PO Box 227, Reading RG6 6AB ISBN 0 948393 18 1 Copyright © the authors (text), illustrations by permission © IFA (typography and design) Edited by Jenny Moore and Alison Taylor The authors Ian Oxley, formerly Deputy Director of the Archaeological Diving Unit, University of St Andrews, is researching the management of historic wreck sites at the Centre for Environmental Resource Management, Department of Civil and Offshore Engineering, Heriot-Watt University, Edinburgh. David O’Regan is a freelance archaeologist, formerly Project Manager for the Defence of Britain Project, Imperial War Museum. Acknowledgements A document attempting to summarise a subject area as wide as UK maritime archaeology inevitably involves the input of a large number of people. It is impossible to name them all and therefore any omissions are regretted but their support is gratefully acknowledged. Particular thanks go to Martin Dean, Mark Lawrence, Ben Ferrari, Antony Firth, Karen Gracie-Langrick, Mark Redknap and Kit Watson. General thanks go to the past and present staff members of the Archaeological Diving Unit and the Scottish Institute of Maritime Studies at the University of St Andrews, and officers and Council members of the IFA and its Maritime Affairs Special Interest Group. The IFA gratefully acknowledges the assistance of the Royal Commission on the Historical Monuments of England, Royal Commission on the Ancient and Historical Monuments of Scotland, Historic Scotland, and the Environment and Heritage Service, Historic Buildings and Monuments, DoE(NI), for funding this paper.
    [Show full text]
  • Maritime Archaeology—Discovering and Exploring Shipwrecks
    Monitor National Marine Sanctuary: Maritime Archaeology—Discovering and Exploring Shipwrecks Educational Product Maritime Archaeology Educators Grades 6-12 Discovering and Exploring Shipwrecks http://monitor.noaa.gov Monitor National Marine Sanctuary: Maritime Archaeology—Discovering and Exploring Shipwrecks Acknowledgement This educator guide was developed by NOAA’s Monitor National Marine Sanctuary. This guide is in the public domain and cannot be used for commercial purposes. Permission is hereby granted for the reproduction, without alteration, of this guide on the condition its source is acknowledged. When reproducing this guide or any portion of it, please cite NOAA’s Monitor National Marine Sanctuary as the source, and provide the following URL for more information: http://monitor.noaa.gov/education. If you have any questions or need additional information, email [email protected]. Cover Photo: All photos were taken off North Carolina’s coast as maritime archaeologists surveyed World War II shipwrecks during NOAA’s Battle of the Atlantic Expeditions. Clockwise: E.M. Clark, Photo: Joseph Hoyt, NOAA; Dixie Arrow, Photo: Greg McFall, NOAA; Manuela, Photo: Joseph Hoyt, NOAA; Keshena, Photo: NOAA Inside Cover Photo: USS Monitor drawing, Courtesy Joe Hines http://monitor.noaa.gov Monitor National Marine Sanctuary: Maritime Archaeology—Discovering and Exploring Shipwrecks Monitor National Marine Sanctuary Maritime Archaeology—Discovering and exploring Shipwrecks _____________________________________________________________________ An Educator
    [Show full text]
  • Maui County Day-Use Moorings
    MMAUIAUI CCOUNTYOUNTY DDAY-USEAY-USE MMOORINGSOORINGS GGuidebookuidebook 22009009 Photos ©Ed Robinson Table of Contents Important Contact Numbers..................................... 2 SOUTHWEST LANA‘I About Day-Use Moorings......................................... 3 Southwest Lana‘i Buoy & Mooring Mooring Diagrams ................................................... 4 Locations Map...................................................26 Mooring Practices for Proper Use & Care................ 5 Kaneapua/Lighthouse/Lighthouse 1 Safety and Etiquette Guidelines ..............................6 Site Description................................................. 27 Kaneapua/Lighthouse/Lighthouse 2 & 3 MOLOKINI MOORINGS Site Description................................................. 28 Molokini Buoy & Mooring Locations Map ...............7 Mokunaio/Shark Fin/Shark Fin 1 Site Description 29 About Molokini......................................................... 8 Molokini Marine Life Conservation District MAUI MOORINGS Overview .............................................................9 WEST MAUI - PALI Molokini Mooring Coordinates ..............................10 West Maui - Pali Buoy & Mooring Molokini Zones: Enenue & Mid Reef .....................11 Locations Map...................................................30 Molokini Zones: Reef’s End & Back Wall............... 12 Coral Gardens/Coral Gardens 1 Site Description................................................. 31 LANA‘I MOORINGS Coral Gardens 2, 3 & 4 Coordinates .....................
    [Show full text]
  • Mooring Buoy Shoreline Exemption Application (PDF)
    MOORING BUOY - SHORELINE EXEMPTION APPLICATION PROPERTY INFORMATION Tax Parcel Number: Shoreline Designation: Island: Water Body: Use of Property: Property Address: APPLICANT INFORMATION Applicant: Telephone: Address Email: City: State: Zip Code: Agent: Telephone: Address: Email: City: State: Zip Code: DESCRIPTION OF PROPOSED USE (Include separate sheets as necessary) PERMIT CERTIFICATION I have examined this application and attachments and know the same to be true and correct, and certify that this application is being made with the full knowledge and consent of all owners of the affected property. Signature of Property Owner or Authorized Agent Date If applicant is not the owner a notarized statement is required stating that the application is submitted with the consent of all owners of the property & identifying the owner’s authorized agent or representative. FOR STAFF USE ONLY Date Received: Fee Paid: Receipt #: Inspection Required SEPA Exempt, citation: Approved subject to the attached conditions Denied By : Date: A timely appeal of this exemption stays the effective date of the approval until the appeal is resolved at the County level. (SJCC 18.80.140A(7)) N:\FORMS, LISTS & HANDOUTS\Land Use Forms & Lists\General Land Use Forms & Lists\2020_XMP_MB.docx Page 1 A. Submit ALL of the following for NEW or EXISTING MOORING BUOYS: 1) A habitat survey performed by a diver and developed per WDFW standards: https://wdfw.wa.gov/. 2) Analysis by a Qualified Professional (SJCC 18.20.170) that the buoy will meet SJCC 18.50.210 General regulations, item (C): C. Shoreline development, uses, structures and activities shall not result in a net loss of shoreline ecological functions or adversely impact other shoreline uses, resources and activities such as navigation, recreation and public access.
    [Show full text]
  • Buoys, Marks and Beacons Fact Sheet
    Buoys, marks and beacons Traffic lights and signs guide drivers on the roads. Buoys, beacons and navigation lights do the same When travelling upstream or away from the sea: 00947 on the water. • keep port (red) marks on your In Queensland, the system of buoys, beacons, marks and lights port-hand side used is compliant with the International Association of Marine (left) Aids to Navigation and Lighthouse Authorities (IALA) Buoyage System ‘A’. Each type of mark has its own colour, shape, top • keep starboard mark and light combination. (green) marks on your starboard To navigate safely, you need to know each mark and its meaning. hand side (right). Lateral marks When travelling downstream or towards the sea: Lateral marks show the port (left) and starboard (right) sides • keep port (red) of navigable waters or channels. marks on your starboard-hand A port mark is red with a can-like shape and displays a red flashing side (right) light at night (when lit). A starboard mark is green with a cone-like • keep starboard shape and displays a green flashing light at night (when lit). (green) marks on When port and starboard lateral marks are opposite each other, your port-hand travel between them. When there is a single side (left). lateral mark, the safe side to pass depends on the direction of travel (or buoyage). This is shown on charts by the symbol: Cardinal marks North cardinal mark Cardinal marks show where the deepest and safest water The top cones point up or North, showing there is safe water is by using a compass.
    [Show full text]
  • The Buoy Tender Marker Buoy Dive Club | Seattle, Washington January, 2011
    The Buoy Tender Marker Buoy Dive Club | Seattle, Washington January, 2011 The Buoy Tender Marker Buoy Dive Club | Seattle, Washington AUGUST 2012 THE TENDER: MARKER BUOY DIVE CLUB NEWSLETTER IN THIS ISSUE President’s Message Buoyed up in August President’s Message 2-3 It’s been so busy I barely know where to start. We’ve gone from Cover Photo 4 a spring and early summer of some of the most rotten viz I’ve Announcements 4 ever had the experience of Next Club Meeting 4 mucking my way through. Sud- Dive Planning Party 4 denly we are having fantastic Dive & Event Calendar 5 viz and really wonderful days to Salt Water St Pk Buoys 6-7 go diving. It’s great to be out Carbon Monoxide Analyzers 8 with the Club on outings like that. Environmental Stewardship 9 One of my most memorable 9-10 REEF Critter of the Month recent dives was the “All gen- REEF Neah Bay Trip Report 11-12 der Bachelor Dive” for Rob Nudibranch Abundance 13 Henderson. Using the spectacu- Lembah and Gangga Dive Report 14-15 lar setting of Namu Cove, cour- Dives and Travels 16 tesy of Brian Horsch, the group Classified 17 dove Waterman’s Wall from Instructors 17 shore on a spectacular day and About Marker Buoy Dive Club 18 great visibility. A couple months previously we had to find the same wall by Braille. We followed up with a tame, but quite fun, bachelor party at Doug and Karin’s a bit down Rich Passage. Later that evening as a satisfied group sailed back on the ferry we remarked at what an incredible day of diving and socializing we had experienced just a couple hours from home.
    [Show full text]
  • Hawaii's Tour Boat Industry 2003
    The Hawaii Boat Industry 2003 –A Survey and Economic Description By Michael Markrich Dba/Markrich Research Email: [email protected] Cell: 808- 372-6225 May 5, 2004 Copyright 2004 Abstract The Hawaii tour boat industry generates approximately $200 million in revenue annually and employs more than 2000 people. Most of the companies that make up the industry are small businesses. They have created badly needed jobs on the Neighbor Islands. Many of these jobs are management positions that pay far above the minimum wage. The tour boat businesses make their living by providing safe access to some of Hawaii’s most beautiful and remote ocean and river areas. Their customers include visitors from around the globe. Most people lack the expertise or the ocean going vessels needed to visit coral reefs or to see whales in their offshore habitat. The tour boat industry enables taxpayers to see the natural resources they own and pay to maintain. The positive experiences of these visits helps nurture the political will needed to maintain ocean resource management programs in Hawaii and throughout the United States. What makes much of this possible is day use-moorings. Day-use moorings are stainless steel eyebolts drilled into the coral or rock substrate beneath the sea and set with epoxy. They cause no environmental harm. In time, coral grows over the metal parts and the day-use moorings become a part of the coral substrate. In highly visited Marine Life Conservation Districts (MLCD’s) tour boats tie their boats to the day-use moorings and take visitors on snorkel and dive tours of the coral reefs.
    [Show full text]
  • Technical Note
    Indian Journal of Geo Marine Sciences Vol. 47 (09), September 2018, pp. 1723-1726 Technical Note SONO BOUYS Raja Acharya India Meteorological Department,Regional Meteorological Centre,Kolkata,Ministry of Earth Sciences 4, Duel Avenue,Alipore Kolkata-700027 [E.Mail: [email protected] ] Received: 14 May 2018 Revised 20 July 2018 A bouy is an anchored floating device which serves as (http://navyaviation.tpub.com/14030/css/Sonobuoy a navigation mark, to show reefs or other hazards, or -Receivers-107.htm) for mooring. A Sono Bouy is a buoy equipped to Sono buoys are classified into three categories: detect underwater sounds, objects and transmit them active, passive and special purpose. by radio. It is a relatively small buoy (typically 13 cm Active sono buoy uses a transducer to radiate a or 5 in, in diameter and 91 cm or 3 ft long with sonar pulse that is reflected back from the target. The expendable sonar system that is dropped/ejected from time interval between the ping (sound pulse) and the aircraft or ships conducting anti-submarine warfare or echo return to the sono buoy is measured. Taking the underwater acoustic research. Doppler Effect on the pulse frequency into The sono buoy has 4 main components: a float, a consideration, this time-measurement data is used to radio transmitter, a saltwater battery, and a calculate both range and speed of the submarine hydrophone. Hydrophone is an underwater sensor relative to the sono buoy. The command activated that converts the pressure waves from underwater buoy is controlled by a UHF command signal from sounds into electrical voltages that get amplified and the aircraft.
    [Show full text]